<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>Jquery</title>
    <script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>
    <script type="text/javascript">
		$(document).ready(function(){
			$('p').find('strong').addClass('big');
		});
    </script>
   	<style type="text/css">
		strong {
			font-size: 120%;
		}
		.big {
			font-size: 130%;
		}
    </style>
</head>
<body>
	<p>This is a <strong>paragraph</strong>, some things are <strong>bold</strong> and some are <strong>not</strong> </p>
    <strong>Out side of paragraph</strong>
</body>   
</html>
